KR100998248B1 - Deodorizing Device for Food Garbage Disposal Apparatus Having Hybrid Type Heater - Google Patents

Abstract

The present invention relates to a deodorizing apparatus for a food processing apparatus having a hybrid heater in which a direct heating method and an indirect heating method are mixed.

The present invention is connected to the inlet and outlet near the both ends of the introduction pipe is introduced to the exhaust gas containing the odor and exhaust gas from which the odor is removed, respectively, the lower cap for sealing both ends at both ends and A spiral shape having an upper cap and having a deodorization chamber through which exhaust gas containing odor passes therein, and a predetermined diameter disposed at an inlet side of the deodorization chamber for heating exhaust gas introduced into the deodorization chamber. And a heater in which a linear portion extending linearly along the axial direction from the center of the spiral shape is integrally formed, one end of which extends outside the lower cap of the housing, and the other end of which extends outside the upper cap of the housing. Spaced at the rear end of the heater and the linear part of the heater is inserted into and fixed to the center of the heat transfer. A plurality of hollow cells coated with a catalyst on a surface of the outer periphery have a structure formed in a longitudinal direction and include a catalyst carrier for removing odor of exhaust gas passing through each cell.

Description

Deodorizing Device for Food Garbage Disposal Apparatus Having Hybrid Type Heater}

The present invention relates to a deodorizing device for a food treatment apparatus, and particularly, when all the parts of the cell are uniformly removed when the exhaust gas including the odor generated during decomposition of organic matter is passed through a plurality of hollow cells coated with a catalyst. The present invention relates to a deodorizing apparatus for a food processing apparatus having a hybrid heater capable of increasing a deodorizing reaction efficiency through an effective reaction with a catalyst by heating to a catalytic activity temperature.

Since food waste has a high water content and is easily decayed, it is difficult to landfill and incinerate, and thus, it is trying to reduce or reduce resources.

However, in recent years, for the convenience of apartment residents or the elderly, household food processing apparatuses that are disposed in the kitchen of each home have been developed and used. The household food waste treatment apparatus discharges food waste (residue) by reducing the volume to a minimum while undergoing procedures such as dehydration, crushing, high temperature drying, and fermentation.

Since the household food treating apparatus generates exhaust gas including the odor generated during the decomposition treatment of organic matter that takes up most of the food waste, the deodorizing device for deodorizing the odor is essentially provided in the exhaust unit.

Conventional deodorizers are microbial deodorization method using microorganisms, activated carbon adsorption method using activated carbon, oxidation catalyst combustion method using an oxidation catalyst and the like.

The microbial deodorization method requires a long treatment time and maintains the proper conditions according to the use of microorganisms and requires periodic replacement, and the activated carbon adsorption method requires periodic activated carbon replacement every two to three months and the proper treatment speed should be maintained. Suitable for small devices with low emissions.

The deodorization apparatus using a conventional oxidation catalyst removes the honeycomb carrier having a plurality of hollow cell structures coated with a catalyst and removes the catalyst by embedding a heater in the deodorizer so that the catalyst reacts effectively with the odor gas. It is heated to the active temperature and is semipermanent and suitable for the place where processing speed and processing capacity are high.

In the deodorizing apparatus using the oxidation catalyst, the heater for heating the catalyst carrier may be divided into a direct heating method in which the heater is integrally formed with the carrier and an indirect heating method in which the heater is separated from the carrier by a certain distance.

The conventional indirect heating deodorizer 1 has a cylindrical housing having an inlet 12 and an outlet 16 at both ends as shown in FIG. 1 and having a flow path 11 through which exhaust gas passes. The heater 16 is arranged at the inlet side of the 10, and the honeycomb carrier 18 having a plurality of hollow cell structures having a catalyst coated on the surface is disposed at the rear end of the heater 16.

The conventional deodorizer 1 is a honeycomb carrier 18 having a plurality of hollow cell structures coated with a catalyst by the heater 16 in a state where the catalytic activity temperature, for example, 200 ~ 350 ℃ Exhaust gas including odor passes through a plurality of hollow cells of the catalyst-coated honeycomb carrier, and burns and reacts with the catalyst to exhaust the deodorized exhaust gas to the outlet 14.

The conventional deodorizing device of the above-described structure is disclosed in Korean Patent Laid-Open Publication No. 2001-39702 in which the heater structure is formed in a “U” shape, and forms a conical coil shape that converges continuously from the upstream to the downstream. The structure is disclosed in Korean Patent No. 499725, and the structure with a coil heater is disclosed in Korean Patent No. 775907. Further, Japanese Patent Application Laid-open No. Hei 10-66953 has a platinum-supported catalyst honeycomb body inside a protective tube. Disclosed is a structure in which two stages are disposed in a rod, and a rod-shaped platinum-supported heater is disposed at each front end thereof.

However, when the heater is disposed at the front end of the catalyst-coated carrier, the rear end of the carrier does not reach the catalytic activity temperature, and thus effective deodorization is not achieved. When the heater is heated enough to reach, an unnecessary power consumption may increase.

On the other hand, as a direct heating deodorizing device is disclosed a structure in which a heater is disposed in the center of the spiral plate coated with a metal catalyst in Korean Patent Laid-Open Publication No. 2003-86085. However, such a carrier structure has a problem that the surface area in which the exhaust gas contacts is relatively smaller than that of the honeycomb carrier structure.

As described above, the deodorizing apparatus using the heater of the indirect heating method for the catalyst carrier of the honeycomb structure has the advantage that the surface coated with the catalyst is large and the preheated exhaust gas can be preheated. There is a problem of not being oxidized (decomposed) or low in energy efficiency due to insufficient contact time. The deodorizing device using a direct heating heater on a disk-shaped carrier having a spiral plate or a partial opening has a simple structure and low aeration resistance. Instead, there are disadvantages in that the surface area of the catalyst coated carrier is small and the incoming exhaust gas cannot be preheated.

In consideration of this point, the present applicant is a direct heating deodorizer through patent application No. 2007-94639 (September 18, 2007) which is a catalyst on the surface of a cylindrical housing having a flow path through which exhaust gas passes. It has been proposed a honeycomb carrier having a plurality of hollow cell structures coated with a coating, and a rod-shaped heater disposed at the center thereof.

However, the above-described deodorizing device has a large surface area of the catalyst-coated carrier, but since the heater is disposed at the center of the carrier, the deodorizing device does not reach the catalytic activity temperature toward the periphery of the carrier, so that effective deodorization is not achieved. If the heater is heated to such a degree that the periphery of the carrier reaches a sufficient catalytic activity temperature, unnecessary power consumption may increase.

Accordingly, the present invention has been made in view of the problems of the prior art, and its object is to directly remove exhaust gas containing odor generated during decomposition of organic matter through a plurality of hollow cells coated with a catalyst. Deodorizer for food processing equipment equipped with hybrid heater that can increase deodorization reaction efficiency through effective reaction with catalyst by heating all parts of cell uniformly by mixing heating method and indirect heating method. To provide.

Another object of the present invention is to increase the deodorization efficiency and power by implementing a flow path that can effectively heat the heat generated from the heater member to the exhaust gas by placing the inside of the housing by setting the size and arrangement of the spiral heater member properly The present invention provides a deodorizing apparatus for a food processing apparatus having a hybrid heater capable of optimizing consumption.

In order to achieve the above object, the present invention is connected to the inlet and the outlet near the both ends, the inlet pipe to which the exhaust gas containing the odor is introduced and the exhaust pipe for exhausting the odor is removed, respectively A housing having a deodorization chamber through which exhaust gas containing malodor passes through, and a lower cap and an upper cap for sealing an end portion, and for heating exhaust gas disposed at an inlet side of the deodorization chamber and introduced into the deodorization chamber. A spiral shape having a predetermined diameter and a straight portion extending linearly along the axial direction from the center of the spiral shape are integrally formed, one end of which extends outside the lower cap of the housing, and the other end of the housing is outside the upper cap of the housing. A heater extending at a distance from the rear end of the heater, and a straight portion of the heater is inserted and fixed to a center portion of the heater Is a food treatment apparatus comprising a catalyst carrier for removing the odor of the exhaust gas passing through each cell has a structure in which a plurality of hollow cells are formed in the longitudinal direction of the heat transfer and the catalyst coated on the surface on the outer periphery thereof; to provide.

The heater may be a sheath heater having a power terminal formed at one end and the other end extending out of the lower cap and the upper cap of the housing, or a cartridge heater having a pair of power terminals disposed at one end extending out of the lower cap of the housing. It is preferable to make.

In addition, it is preferable that the spiral shape of the heater is set in the range whose inner diameter is equal to or smaller than the inner diameter of the inlet, and the outer diameter of the spiral shape is set smaller than the inner diameter of the housing and larger than 1/2.

In addition, it is preferable that the space between the spiral shape of the heater and the inlet of the housing and the outlet of the catalyst carrier and the housing are respectively spaced apart.

The housing is preferably installed in the vertical direction and the inlet is disposed below.

As described above, in the present invention, by using a hybrid heater in which the direct heating method and the indirect heating method are mixed, the entire area of the catalyst carrier is uniformly heated to the catalytically active temperature so that the exhaust gas including the odor is coated with a plurality of catalysts. When passing through the hollow cell, the effective reaction with the catalyst can increase the deodorization reaction efficiency.

In addition, in the present invention by setting the size of the spiral heater member appropriately placed inside the housing to implement a flow path that can effectively transfer the heat generated from the heater member to the exhaust gas to increase the deodorization efficiency and power consumption Optimization can be achieved.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a block diagram showing the internal structure of the deodorizing device for a food processing apparatus according to the first embodiment of the present invention, Figures 3a and 3b is a cross-sectional view taken along line X-X 'of Figure 2, Figure 4 Figure 2 is a block diagram showing the internal structure of the deodorizing device for food processing apparatus according to the second embodiment of the.

First, the deodorizing apparatus 3 for a food processing apparatus 3 according to the first embodiment of the present invention shown in FIG. 2 discharges the introduction pipe 22 into which the exhaust gas containing the odor is introduced and the exhaust gas from which the odor is removed. The exhaust pipe 24 is connected to the inlet 35 and the outlet 36 near the both ends, respectively, and has a lower cap 34 and an upper cap 33 for sealing both ends at both ends and odors therein. The housing 30 having a deodorization chamber 31 through which the exhaust gas is passed, and a predetermined diameter for heating the exhaust gas disposed at the inlet side of the deodorization chamber 31 and introduced into the deodorization chamber 31. The spiral shaped portion 37a and the straight portion 37b extending linearly along the axial direction from the center of the spiral shaped portion 37a are integrally formed, and one power terminal 37c to which power is applied is housed. Extending to the outside of the lower end of the 30 and the other power supply terminal portion 37d of the housing 30 A heater 37 extending outwardly of the end portion, and a straight portion 37b of the heater 37 is inserted in the rear end of the heater 37 and a plurality of catalysts are coated on the surface on the outer circumference thereof. The hollow cells 40 and 42 have a catalyst carrier 38 having a honey comb structure formed in the longitudinal direction.

The housing 30 has a cylindrical portion 32 in which a heater 37 and a carrier 38 are embedded therein, and an upper cap installed at a lower end of the cylindrical portion 32 to seal the upper end of the cylindrical portion 32. 33 and a lower cap 34 installed at the upper end of the cylindrical part to seal the lower end of the cylindrical part 32.

The cylindrical portion 32 is formed of a cylindrical body through which the upper and lower portions penetrate, and the heater 37 and the carrier 38 are embedded in the set position.

The upper cap 33 and the lower cap 34 is composed of a disc formed to protrude to the diameter of the center portion is inserted into the upper and lower ends of the cylindrical portion 32, the fixing hole 33a fixed to the heater 37 in the center 34a) is formed. The upper cap 33 and the lower cap 34 are respectively inserted into the upper and lower portions of the cylindrical portion 32 to seal the cylindrical portion 32, and also serves to fix both ends of the heater 37.

Here, the deodorizing device 3 is installed in the vertical direction in the food treatment apparatus, the inlet 35 is connected to the cylindrical portion 32 above the lower cap 34, the outlet 36 is the upper cap 33 It is preferable that the catalyst carrier 38 is located above the heater 37 by being connected to the lower cylindrical portion 32. The reason for this is to prevent the catalyst carrier 38 from getting wet due to condensation and to allow the flow to vortex while the exhaust gas is introduced into and discharged from the housing 30, thereby providing the heater 37 and the carrier 38 with the same. The reason is that the length of stay is long and the deodorization is perfected.

In general, the deodorizer 3 is designed such that the exhaust gas flows through the deodorizer by a blower or other suitable air intake / exhaust device installed in the exhaust line connected to the inlet 35 or the outlet 36.

According to the first embodiment of the present invention shown in FIG. 2, the heater 37 has one power terminal 37c extending out through the lower cap 34, and the other power terminal 37d has an upper cap ( 33, a sheath heater is used which extends out of the housing 30.

Therefore, the power supply to the heater 37 is applied between one power terminal 37c and the other power terminal 37d.

The sheath heater puts a filament at the center of various sheaths and inserts high purity magnesium powder or aluminum oxide powder having high thermal insulation and good thermal conductivity therebetween, and compresses the sheath outer diameter to a high pressure. Since it is integrated, the temperature difference between the inner heating wire and the sheath is sufficiently lowered, and there is no fear of disconnection and heating wire due to aging or shock of the heating wire by oxidation. In addition, the sheath heater shown in FIG. 2 has a structure in which both ends of the filament are connected to one side and the other power terminal 37c, 37d, respectively, so that the manufacturing cost is low and the durability life is excellent.

Here, the heater 37 power terminal, that is, one side and the other power terminal 37c, 37d usually uses a screw terminal, but besides, a flat terminal or a lug terminal may be used as shown in FIG. 2.

The heater 37 ′ according to the second embodiment of the present invention shown in FIG. 4 has the same structure as that of the first embodiment in the spiral portion 37a and the straight portion 37b, but a pair of power terminals connected to the heating wire. One-terminal cartridge heaters 37c and 37d are used.

In the heater 37 ′ of the second embodiment, one end of the spiral portion 37a extends through the lower cap 34, and one end of the straight portion 37b extends through the upper cap 33 to the outside. Has a structure.

In the cartridge heater, the heating wire is wound at precise intervals by an automatic winding machine on the surface of the high purity magnesium core, and the heating wire wound on the core surface is precisely filled by high purity magnesium oxide, which is an electrical insulator for high temperature, in the center of the metal tube and is a high pressure compressor. It is compressed into the metal tube by the body and manufactured integrally.

Therefore, the cartridge heater has an advantage of supplying heat required in a minimum space by injecting a maximum amount of heat into a minimum area.

The spiral shape 37a of the heaters 37 and 37 'used in the first and second embodiments of the present invention has a range whose inner diameter D1 is equal to or smaller than 40% of the inner diameter D2 of the inlet 35. It is preferable that the outer diameter D3 of the spiral shaped portion 37a is set smaller than the inner diameter D4 of the housing 30 and larger than 1/2.

That is, the inner diameter D1 of the spiral shaped portion 37a of the heaters 37 and 37 'must be set smaller than the inner diameter D2 of the inlet 35 so that the exhaust gas flowing into the inlet 35 of the housing 30 can be reduced. As indicated by the arrow, the flow can be classified into a flow A1 passing through the inside of the spiral shape 37a and a flow A2 passing through the outside, and an inner diameter D1 of the spiral shape 37a. ) Is set to less than 40% less than the inner diameter (D2) of the inlet 35, the amount of heat generated in the spiral-shaped portion (37a) is reduced to optimize the power consumption of heating the catalyst carrier to the catalytic activity temperature You cannot plan.

In addition, the outer diameter D3 of the spiral shaped portion 37a must be set smaller than the inner diameter D4 of the housing 30 so that the exhaust gas can be classified by the spiral shaped portion 37a, and at least the housing 30 is formed. It should be set larger than 1/2 of the inner diameter D4 to optimize the power consumption for heating the catalyst carrier to the catalytic activity temperature.

Setting the size of the spiral shaped portion 37a of the heaters 37 and 37 'in this way causes the heat generated from the spiral shaped portion 37a to radiate not only to the inside but also to the outside when power is supplied to the heater 37. This is to effectively utilize the exhaust gas and the catalyst carrier 38 to heat it.

That is, when the outer diameter D3 of the spiral shaped portion 37a is set smaller than the inner diameter D4 of the housing 30, the flow of exhaust gas flowing into the inlet 35 of the housing 30 is indicated by an arrow. Likewise, the flow is divided into a flow A1 passing through the inside of the spiral shape 37a and a flow A2 passing through the outside, so that heat is dissipated to the inside and outside of the spiral shape 37a and effective heat transfer is achieved. .

Further, the spiral shape 37a of the heaters 37, 37 ′ is spaced apart from the inlet 35 of the housing 30 and the catalyst carrier 38, respectively, and the catalyst carrier 38 and the housing 30 are separated from each other. It is preferred that the outlets 36 are arranged at predetermined intervals.

The spacing is set by utilizing the spiral shape 37a of the heaters 37, 37 ′ as an indirect heating method, and the deodorization chamber 31 having a wide cross section through the inlet 35 having a narrow cross section of the housing 30. As the exhaust gas introduced into the diffusion is diffused, the spherical shape 37a can be naturally classified, and then the high-temperature exhaust gas heat-exchanged while passing through the inside of the spiral shape 37a is diffused again. The exhaust gas also flows to the periphery of 38) so that the exhaust gas is heated evenly before entering the catalyst carrier 38, and the exhaust gas passing through the periphery of the catalyst carrier 38 passes through the central part while staying at the outlet side. It is mixed with the relatively high temperature exhaust gas and serves to raise the temperature of the outlet side.

On the other hand, the catalyst carrier 38, for example, as shown in Figure 3a, a material coated with platinum, cobalt, nickel, palladium or nano silver as a catalyst metal on a FeCrAl-based heat-resistant alloy sheet having a thickness of 20 ~ 100㎛ It is used to form a honeycomb structure built in the cylindrical case 38a by winding the fusion welding is made for each contact portion contacted by the corrugated wave plate 38b to the flat plate 38c.

The catalyst carrier 38 has a catalytic activity temperature of, for example, 200 to 600 ° C., depending on the type of catalyst metal.

In this case, the catalyst carrier 38 has a plurality of cells 40 formed in the longitudinal direction by the plate 38c and the wave plate 38b, and at the center thereof from the spiral shape 37a of the heaters 37, 37 '. The through-hole 38d into which the linear part 37b extended linearly is inserted is formed. The cell 40 of the catalyst carrier 38 may be hemispherical or triangular, depending on the shape of the wave plate 38b.

As the FeCrAl-based alloy material, a Fecaloy alloy or Fe-20Cr-5Al-REM (rare earth metal) synthesized at a ratio of Fe-15Cr-5Al is used, including about 1% of REM (Y, Hf, Zr). It is preferable.

In addition, the catalyst carrier 38 is a honeycomb structure having a plurality of hollow cells 42 made of ceramic, as shown in FIG. 3B, having a rectangular or circular shape, and having a catalyst layer coated on a surface thereof. ) Is formed in the cylindrical case 380a, and a structure in which a through hole into which the straight portion 37b of the heater is inserted in the center portion is formed.

In addition, the honeycomb-shaped catalyst carrier 38 may be manufactured using a metal body as in the embodiment of FIG. 3A.

In the deodorizing apparatus 3 of the present invention configured as described above, when exhaust gas containing the odor generated in the food treatment tank is introduced into the inlet 35 of the deodorizing apparatus 3 through an exhaust passage (pipe or duct), Exhaust gas is classified into a flow A1 passing through the inside of the spiral shape 37a and a flow A2 passing through the outside in the deodorizing chamber 31 to the inside and the outside of the spiral shape 37a. Efficient heat transfer (heat exchange) with heat dissipation is made to pass through the plurality of hollow cells 40, 42 of the catalyst carrier 38.

The catalyst carrier 38 is uniform in its entirety with the exhaust gas passing through the central portion heated by the straight portions 37b of the heaters 37 and 37 'and the peripheral portion heated in the spiral shaped portion 37a. In this case, heating is performed to the catalytic activity temperature. In this case, the catalyst carrier 38 passes through the spiral-shaped portion 37a by indirect heating by the spiral-shaped portions 37a of the heaters 37 and 37 'so that the heat-exchanged exhaust gas is diffused to form the catalyst carrier 38. The heat transfer proceeds rapidly to the rear of the catalyst carrier 38 by the direct heating by the straight portion 37b of the heaters 37 and 37 ', using the minimum power than the indirect heating alone or the direct heating alone. Thus, the entire catalyst carrier 38 is effectively heated.

Accordingly, the catalyst carrier 38 of the present invention maintains the catalytic activity temperature without causing a large temperature difference between the center and the periphery, the front end, and the rear end, and as a result, the plurality of hollow cells 40 of the catalyst carrier 38. Exhaust gas passing through 42 is oxidized with the catalyst coated on the surface of the cell, and the exhaust gas from which the odor is removed is discharged through the outlet 36.

Deodorization test

In order to find out the deodorizing performance of the deodorizing device according to the present invention, the coating on the metal carrier of the honeycomb structure as shown in Figure 2 and 3a using a catalyst (Pt) as a catalyst, the indirect heating and direct heating Prepared an embodiment of the present invention employing a hybrid type heater using a 400g food sample to measure the odor using OMX-SR (manufactured by Shinyei Co., Ltd.) as a odor meter, the level of about 0 ~ 2 was measured After the catalyst was activated, it was measured at the "0" level. That is, no substantial odor was detected from the exhaust gas.

As shown in FIG. 1, after coating a honeycomb structured metal carrier using platinum (Pt) as a catalyst and preparing Comparative Example 1 employing a proximity heating sheath heater, odor was measured under the same conditions as in the above example. As a result, levels ranging from 60 to 120 were measured.

In addition, after coating a spiral-shaped metal plate using platinum (Pt) and palladium (Pd) as a catalyst and preparing Comparative Example 2 employing a central insertion cartridge heater, the odor was measured under the same conditions as in the above example. Levels in the 7-8 range were measured.

As a result of the deodorizing performance test, it can be seen that the deodorizing device according to the present invention is very excellent compared with Comparative Examples 1 and 2 according to the prior art.

As described above, in the present invention, the hybrid heaters 37 and 37 'mixed with the direct heating method and the indirect heating method are used to uniformly heat the entire area of the catalyst carrier 38 having the honeycomb structure to the catalytic activity temperature. This results in a complete deodorization through effective reaction with the catalyst as the exhaust gas containing the odor passes through the plurality of hollow cells coated with the catalyst.

In addition, in the present invention, by setting the spiral shape portion 37a of the heaters 37 and 37 'appropriately and placing the inside of the housing 30, the flow path through which heat generated from the heater can be effectively transferred to the exhaust gas. By improving the efficiency of deodorization and power consumption can be optimized.

The present invention is a deodorizing device for removing odor from the exhaust gas containing odor generated during the processing of organic matter such as food waste, exhaust gas and catalyst carrier using a hybrid heater in which the direct heating method and the indirect heating method is mixed By uniform heating, the deodorization efficiency can be improved and the power consumption can be optimized.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the spirit of the present invention. Various changes and modifications will be possible by those who have the same.

1 is a schematic cross-sectional view showing a deodorizing device for a conventional food waste disposal device,

Figure 2 is a block diagram showing the internal structure of the deodorizing device for food processing apparatus according to the first embodiment of the present invention,

3A and 3B are cross-sectional views taken along line X-X 'of FIG. 2, respectively.

Figure 4 is a block diagram showing the internal structure of the deodorizing device for food processing apparatus according to a second embodiment of the present invention.

* Explanation of Signs of Major Parts of Drawings *

3: deodorizer 22: introduction tube

24: exhaust pipe 30: housing

31: deodorization room 32: cylindrical part

33: upper cap 34: lower cap

35: entrance 36: exit

37,37 ': Heater 37a: Spiral shape

37b: straight portion 37c: power supply terminal

37d: power supply terminal 38: catalyst carrier

38a, 380a: Case 38b: Papa

38c: flat plate 38d: through hole

380b: carrier

Claims (6)

An introduction pipe through which exhaust gas containing odor is introduced and an exhaust pipe through which odor is removed are connected to inlets and outlets near both ends, respectively, and a lower cap and an upper cap for sealing both ends at both ends are provided. A housing having a deodorization chamber through which exhaust gas containing a bad smell passes; It is formed at the inlet side of the deodorization chamber and is formed integrally with a spiral shape having a spiral shape and a linear portion extending linearly along the axial direction from the center of the spiral shape for heating the exhaust gas introduced into the deodorization chamber, one side A heater whose end extends outside the lower cap of the housing and the other end extends outside the upper cap of the housing; Arranged at intervals at the rear end of the heater, the linear portion of the heater is inserted and fixed in the center portion to achieve heat transfer of the heater, and a plurality of hollow cells having a catalyst coated on the surface on the outer circumference thereof in a longitudinal direction and each cell Food processing apparatus comprising a catalyst carrier for removing the odor of the exhaust gas passing through the Deodorizer for The deodorizing apparatus of claim 1, wherein the heater comprises a sheath heater having power terminals respectively formed at one end portion and the other end portion extending out of the lower cap and the upper cap of the housing. The deodorizing apparatus of claim 1, wherein the heater comprises a cartridge heater in which a pair of power terminals are disposed at one end portion extending out of the lower cap of the housing. According to claim 1, wherein the spiral shape of the heater is characterized in that the inner diameter of the heater is set to the same or less than 40% of the range, the outer diameter of the spiral shape is set smaller than the inner diameter of the housing and larger than 1/2. Deodorizer for food processing equipment. The deodorizing apparatus of claim 1, wherein a space between the spiral-shaped portion of the heater and an inlet of the housing and an outlet of the catalyst carrier and the housing are disposed at intervals, respectively. The deodorizing apparatus of claim 1, wherein the housing is installed in a vertical direction and an inlet is disposed at a lower side thereof.

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